<script setup>
import { ref } from 'vue'
import { Edit, Delete } from '@element-plus/icons-vue'
import {
  artGetChannelsService,
  artDelChannelService
} from '../../api/article'
import ChannelEdit from './components/ChannelEdit.vue'
const channelList = ref([])

// 对loading 声明一个变量
const loading = ref(false)

// 弹层 dialog
const dialog = ref()

const getChannelList = async () => {
  // 发请求起前， 开启 loading
  loading.value = true
  const res = await artGetChannelsService()
  channelList.value = res.data.data

  // 请求之后 ， 关闭效果
  loading.value = false
}
getChannelList()

// 删除文章分类 弹层
const onDelChannel = async (row) => {
  await ElMessageBox.confirm(
    '你确认要删除该分类么',
    '温馨提示',
    {
      type: 'warning',
      confirmButtonText: '确认',
      cancelButtonText: '取消'
    }
  )
  await artDelChannelService(row.id)
  ElMessage.success('删除成功~')
  getChannelList()
}

//  row 表示当前行的数据
const onEditChannel = (row) => {
  dialog.value.open(row)
}

// 弹窗
const onAddChannel = () => {
  dialog.value.open({})
}

// 添加成功
const onSuccess = () => {
  getChannelList()
}
</script>

<template>
  <page-container title="文章分类">
    <template #extra>
      <!-- 添加 点击事件  onAddChannel  -->
      <el-button @click="onAddChannel">添加分类</el-button>
    </template>

    <!-- 加入 v-loading   一个加载的效果  false 指令会移除 -->
    <el-table
      v-loading="loading"
      :data="channelList"
      style="width: 100%"
    >
      <el-table-column
        type="index"
        label="序号"
        width="100"
      ></el-table-column>
      <el-table-column
        prop="cate_name"
        label="分类名称"
      ></el-table-column>
      <el-table-column
        prop="cate_alias"
        label="分类别名"
      ></el-table-column>
      <el-table-column label="操作" width="150">
        <!-- row 就是 channelList 的一项， $index 下标 -->
        <template #default="{ row, $index }">
          <!-- 编辑按钮 -->
          <el-button
            :icon="Edit"
            circle
            plain
            type="primary"
            @click="onEditChannel(row, $index)"
          ></el-button>
          <!-- 删除按钮 
          绑定点击事件  onDelChannel -->
          <el-button
            :icon="Delete"
            circle
            plain
            type="danger"
            @click="onDelChannel(row, $index)"
          ></el-button>
        </template>
      </el-table-column>

      <!-- 没有数据 配置一个  el-empty  里面加一个描述属性， description -->
      <template #empty>
        <el-empty
          description="当前没有数据，请手动添加！"
        ></el-empty>
      </template>
    </el-table>

    <channel-edit
      ref="dialog"
      @success="onSuccess"
    ></channel-edit>
  </page-container>
</template>

<style lang="scss" scoped></style>
